New, improved design plug-n-playEliminate blown fuses caused by overload of the stock lighting or accessory circuits relay harness utilizes inputs from the motorcycle to direct power from the battery to the appropriate trailer lighting circuitKits provide standard five-wire output (run, brake, left turn, right turn, ground) plus a bonus wire that can be connected to provide 12V fused power to the trailer for compartment lights or keyless entry systemsDoes not include receptacle kits